package com.mitch.utils;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

/**
 * Created by limc on 2017/8/11.
 */
@Component
public class SpringContextUtil implements ApplicationContextAware {

    private static ApplicationContext applicationContext; // Spring应用上下文环境

         /*

          * 实现了ApplicationContextAware 接口，必须实现该方法；

          *通过传递applicationContext参数初始化成员变量applicationContext

          */

    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        SpringContextUtil.applicationContext = applicationContext;
    }



    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }


    public static <T> T getBean(String name) throws BeansException {
        return (T) applicationContext.getBean(name);
    }
    public static <T> T getBean(Class clz) throws BeansException {
        return (T) applicationContext.getBean(clz);
    }

}